Maintenance work on the superstructure
8.11 Hook blocks
8 - 76 3 302 744 en Maintenance manual
GMK5250L
09.03.2018
The diagram gives an example of the arrange-
ment of the grease nipples (1), (2) and (3) on a
hook block.
There are more grease nipples on the other
side.
• Clean the grease nipples on all hook blocks
and grease them using a grease gun.
Checking the
fastenings
The truck crane GMK5250L can be equipped with hook blocks that can be
separated.
The figure shows an example of the removable components on a hook
block.
Separable hook block
• Check the separatable joints (1) for damage.
• Check the bolts (2) and the retaining pins (3)
for damage.
G
Risk of accidents due to non-secured hook block components
If the removable components of the bottom hook block are not properly
secured, then they can fall from a great height and fatally injure people dur-
ing crane operation.
Always check that the removable components are properly secured during
loading and before crane operation.
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